The best way to obtain a value on Real Estate is VIA an appraisal. A Realtor can provide and general ball park of a properties value, but not an official value like and a appraiser. The other factor that needs to be considered is, the purpose you having the property valued. If your looking to establish asking price prior you listing your property with a Realtor, then a Realtor would be ideal for the job. If your a buyer trying to determine if the property your considering purchasing has a curtain value, then you should seek the services of a licensed appraiser. No matter the purpose of value, the property should be inspected by the professional of your choosing, before an opinion of value is provided. Good luck, and happy value hunting.